Video: Qhov pom Ommatidium nyob qhov twg?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Rhabdom, pob tshab, cov qauv siv lead ua tau txais pom nyob rau hauv qhov sib xyaw qhov muag ntawm arthropods. Lub rhabdom nyob hauv qab lub cornea thiab tshwm sim hauv nruab nrab ntawm txhua qhov ommatidium ua (chav pom kev) ntawm qhov muag sib txuas.
Kuj nug, Ommatidia hauv biology yog dab tsi?
Lub qhov muag ntawm kab, crustaceans thiab millipedes yog tsim los ntawm cov chav hu ua ommatidia . Txhua ommatidium muaj ib pawg ntawm photoreceptors, txhawb nqa, thiab pigment hlwb. Txhua tus muaj ib lub axon ntawm lub paj hlwb thiab muab lub hlwb ib feem ntawm daim duab.
Qhov thib ob, pes tsawg Ommatidia muaj kab laum muaj? Ua Haujlwm Ntawm Qhov Muag Compound: Kab muaj ob yam ommatidia.
Ib yam nkaus, lub qhov muag sib pom zoo li cas?
A qhov muag sib txuas yog ib qho khoom siv pom pom hauv arthropods xws li kab thiab crustaceans. Piv nrog ib leeg-aperture qhov muag , ob lub qhov muag muaj cov duab tsis zoo; Txawm li cas los xij, lawv muaj lub kaum sab xis pom loj heev thiab muaj peev xwm txheeb xyuas kev txav ceev thiab, qee zaum, lub teeb ntawm lub teeb.
Dab tsi yog txoj haujlwm ntawm Ommatidia hauv kab laum?
Sab nrauv ntawm ommatidium yog overlaid nrog pob tshab pob kws . Ommatidia txhua chav me me uas ua rau qhov muag pom ntawm cov tsiaj zoo li kab. Ntau ommatidia ua haujlwm ua ke los muab cov duab mossaic (mossaic pom). Cov ntsej muag sib xyaw no yog qhov rhiab heev tab sis lawv cov kev daws teeb meem qis.
Pom zoo:
Qhov chaw nyob ntawm thawj lub tsev kawm qib siab kho hniav nyob hauv ntiaj teb nyob qhov twg?
Dr. John M. Harris tau pib lub ntiaj teb thawj lub tsev kho hniav hauv Bainbridge, Ohio, thiab tau pab tsim kho hniav raws li kev noj qab haus huv. Nws qhib rau 21 Lub Ob Hlis 1828, thiab niaj hnub no yog tsev khaws puav pheej kho hniav. Thawj lub tsev kawm kho hniav, Baltimore College ntawm Kev Kho Hniav, tau qhib hauv Baltimore, Maryland, Asmeskas xyoo 1840
Thawj qhov muag pom qhov muag nyob qhov twg?
Occipital lub cev
Nyob qhov twg siab endothelial venules nyob qhov twg?
Hauv tib neeg, HEVs tau pom nyob hauv txhua qhov nruab nrab lymphoid (tshwj tsis yog tus po, qhov twg cov ntshav tawm los ntawm cov hlab ntsha qhib thiab nkag mus rau cov nqaij liab), suav nrog ntau pua ntawm cov qog ntshav uas tau tawg hauv lub cev, tonsils thiab adenoids hauv pharynx, Peyer thaj ua rau thaj (PIs) nyob rau hauv txoj hnyuv me, daim ntawv ntxiv, thiab me me
Lub qhov hluav taws xob nyob qhov twg nyob qhov twg?
Lub plab feem ntau yog nyob rau sab laug sab saud sab hauv qab lub diaphragm thiab txuas nrog zoo dua rau txoj hlab pas thiab nyob deb rau duodenum
Qhov kev tiv thaiv qhov txhab feem ntau pom nyob qhov twg?
Kev tiv thaiv qhov txhab feem ntau pom ntawm ob txhais tes thiab hauv pliaj, qhov chaw uas tus neeg raug tsim txom tau tsa lawv los tiv thaiv lub taub hau thiab lub ntsej muag lossis tiv thaiv kev ua phem, tab sis kuj tseem muaj nyob ntawm ko taw thiab ob txhais ceg uas tus neeg raug tsim txom sim tiv thaiv thaum pw thiab ncaws. tawm ntawm tus neeg ua phem